Peptide Guides
Plain-English, evidence-based reference on the peptides people are actually searching — what each one is, how it's studied, and its regulatory status. Educational only; never medical advice.
Healing & Recovery
Metabolic & GLP-1
Semaglutide
An FDA-approved GLP-1 receptor agonist for type 2 diabetes and chronic weight management.
Read guide →Tirzepatide
An FDA-approved dual GIP/GLP-1 receptor agonist for diabetes and weight management.
Read guide →Retatrutide
An investigational triple hormone-receptor agonist in clinical trials for obesity.
Read guide →AOD-9604
A modified fragment of growth hormone studied for fat metabolism.
Read guide →Cagrilintide
An investigational long-acting amylin analog studied for weight management.
Read guide →Liraglutide
An FDA-approved daily GLP-1 receptor agonist for diabetes and weight management.
Read guide →Survodutide
An investigational GLP-1/glucagon dual agonist studied for obesity and liver disease.
Read guide →Growth Hormone Secretagogues
Ipamorelin
A selective growth-hormone secretagogue studied for stimulating GH release.
Read guide →CJC-1295
A growth-hormone-releasing hormone analog studied to increase GH and IGF-1.
Read guide →Tesamorelin
An FDA-approved GHRH analog for HIV-associated lipodystrophy.
Read guide →Sermorelin
A GHRH analog historically used to assess and stimulate growth-hormone release.
Read guide →GHRP-6
A growth-hormone-releasing peptide studied for stimulating GH and appetite.
Read guide →Hexarelin
A potent growth-hormone-releasing peptide studied for GH release and cardiac effects.
Read guide →MK-677 (Ibutamoren)
An orally-active, non-peptide growth-hormone secretagogue widely grouped with peptides.
Read guide →GHRP-2
A growth-hormone-releasing peptide studied for GH release.
Read guide →Longevity & Metabolic
Skin & Cosmetic
GHK-Cu
A copper-binding peptide widely used in skincare and studied for tissue repair.
Read guide →Melanotan II
A melanocortin peptide studied for skin tanning, with notable safety concerns.
Read guide →Melanotan I
A melanocortin peptide; an approved form (Scenesse) treats a rare light disorder.
Read guide →Sexual Health
PT-141
A melanocortin peptide; an approved version treats certain sexual-desire disorders.
Read guide →Kisspeptin-10
A reproductive-signaling peptide studied for its role in hormones and libido.
Read guide →Oxytocin
A natural hormone studied for bonding, mood and intimacy — approved for specific medical uses.
Read guide →